Abstract
In this study, whether or not the pinch width affects the pinch force to be securely exerted was investigated. We focused especially on individual pinch width when the muscle are relaxed, which is defined as Natural Opposition Distance, rather than the span determined by the object in the conventional approach. A total of 10 subjects participated in the experiment where their individual NODs were measured with the CyberGlove system. Objects with different pinch width including individual NODs were used for measuring secure force of 1-point pinch grip. The results of ANOVA showed that the difference in pinch width did not influence secure force. All in all, results of our experiment implied that the difference in grip span has less influence on force exertion when the exertion is submaximal.
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